Problem flashing with NCS

As my previous Q give me the answer that I cannot flash rm914 into a rm915 Nokia Lumia 520 from AT&T I'm trying to flash a rm915 rom, AU Country Versión.

But now I have a problem with NCS, it recognize the phone, I can enter into test mode, so I suppose that the conection is OK. But when I start flashing, NCS says rebooting and after a few seconds I get a error message saying "Invalid response from device, incorrect message id"

If I go to NCS error log I can see the same error "Nokia.Murzim.InvalidResponseException: Invalid response from device, incorrect message id"

XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality.Are you a developer?